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Re: Electric Air Raid Sirens...

Originally Posted by Alcock

No, i am contemplating buying one to add to my Cold War Collection - but if i am going to get one i want to know how easy they are to connect to the mains.

Should be easy enough to connect to the mains,with the closure of many Coastguard stations and small Police stations there must be quite a few sirens around because as far as I know they were all fitted with them.My local CG station had one fitted in the event of some need to use it.An electrician could wire it up for you.

Re: Electric Air Raid Sirens...

If you want it as a museum piece.. keep it original.. but for a working demonstration would it not be easier to swap out the vintage 3-phase for a modern 5HP single phase motor? As long as the shaft aligns, the motor is just a means of spinning up the noise generator. Matched for power and RPM, I can't see a reason why a modern motor wouldn't be just as good for demonstrating. Chris, I believe you've spun yours up on an 18V battery drill.